AoA, I have Toyota Vitz 2010 import 2013. I bought this car in 2024 June and I am its 4th owner. When I bought the car, I went through complete tuning of the card (Spark Plugs, Throttle Body, Injectors, etc) plus I got the ring pistons changed. Since then, the car working absolutely fine. The only problem is its fuel average. It gives around 13 on long and 12 in city. Sometimes long drops to 12.5 too. I have 185/70/R14 alloy rims installed. I use 10W 40 engine oil. Milage is more than 207000 KMs. What can I do to improve the fuel average? I believe th3 car should give more than 15 even with over sized rims installed.
